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This document (7023884) is provided subject to the disclaimer at the end of this document.

Environment

SUSE Linux Enterprise High Availability Extension

Situation

With the release of SAP HANA version 2.0, there is a new option in HANA System Replication ( HSR in the following) to free up CPU resources by using a secondary SAP HANA node with a 'read enabled' feature.

SAP
HANA allows SAP Applications to read data not only from the primary SAP
HANA node, but also from a secondary SAP HANA node, which is usually
part of your system landscape as part of the high-availability scenario.

The
question often arises about how to manage this feature in an SUSE High
Availability Cluster, often used to manage the HA and business
continuity requirements.

Resolution

Firstly, this is a supported configuration within a SUSE HAE cluster. However, in order to take advantage of this capability within the Cluster, some minor reconfiguration will be needed.

Assumptions to proceed with this description:

- Having a fully configured SUSE HAE Cluster Managing the SAP HANA DATABASE and the HSR.- Having configured the Read Enable Feature in HSR

Additional Cluster Resources:

The introduction of an additional resource IP address is required. There is also the need for a constraint to bind the IP address to the slave/secondary instance of HANA within the cluster.

The following is an example that has to be changed according to the resource naming in the cluster:

Additional Information

Disclaimer

This Support Knowledgebase provides a valuable tool for NetIQ/Novell/SUSE customers and parties interested in our products and solutions to acquire information, ideas and learn from one another. Materials are provided for informational, personal or non-commercial use within your organization and are presented "AS IS" WITHOUT WARRANTY OF ANY KIND.